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SUSE 11-SP4: 2021-14702-1 Critical: Xen Stack Overflow & Infinite Loop

suse
Calendar Grey April 19, 2021
Scroller Suse
Important release from SUSE regarding xen resolves buffer overflow and endless loop vulnerabilities, improving the robustness and safety of the system.
An update that solves two vulnerabilities and has one errata is now available

Summary

This update for xen fixes the following issues: - CVE-2021-3419: Fixed a stack overflow induced by infinite recursion issue (bsc#1182975). - CVE-2021-20257: Fixed an infinite loop in the e1000 NIC emulator (bsc#1182846) - xenstored crashing with segfault (bsc#1182155). Patch Instructions: To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch". Alternatively you can run the command listed for your product: - SUSE Linux Enterprise Server 11-SP4-LTSS: zypper in -t patch slessp4-xen-14702=1 - SUSE Linux Enterprise Debuginfo 11-SP4: zypper in -t patch dbgsp4-xen-14702=1 Package List: - SUSE Linux Enterprise Server 11-SP4-LTSS (i586 x86_64): xen-kmp-default-4.4.4_48_3.0.101_108.123-61.64.1 xen-libs-4.4.4_48-61.64.1

Topics%20covered

Topics Covered

security advisory critical update SUSE Linux infinite loop stack overflow stability enhancement Xen

References

#1182155 #1182846 #1182975

Cross- CVE-2021-20257 CVE-2021-3419

CVSS scores:

CVE-2021-20257 (SUSE): 3.2 CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:N/I:N/A:L

CVE-2021-3419 (SUSE): 5.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Affected Products:

SUSE Linux Enterprise Server 11-SP4-LTSS

SUSE Linux Enterprise Debuginfo 11-SP4

https://www.suse.com/security/cve/CVE-2021-20257.html

https://www.suse.com/security/cve/CVE-2021-3419.html

https://bugzilla.suse.com/1182155

https://bugzilla.suse.com/1182846

https://bugzilla.suse.com/1182975

Severity
critical
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Low
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Critical

Announcement ID: SUSE-SU-2021:14702-1
Rating: important

Topics%20covered

Topics Covered

security advisory critical update SUSE Linux infinite loop stack overflow stability enhancement Xen

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